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函數(shù)f(x)對一切實(shí)數(shù)x,y均有f(x+y)-f(y)=(x+2y+1)x成立且f(1)=0

(1)求f(0)的值

(2)當(dāng)x∈(0,)時，f(x)+2＜log_ax,恒成立，求a的取值范圍.

函數(shù)f(x)對一切實(shí)數(shù)x,y均有f(x+y)-f(y)=(x+2y+1)x成立，且f(1)=0.

（1）求f(0);

(2)求f(x);

(3)不等式f(x)＞ax-5當(dāng)0＜x＜2時恒成立，求a的取值范圍.

函數(shù)f(x)對一切實(shí)數(shù)x,y均有f(x+y)-f(y)=(x+2y+1)x成立,且f(1)=0.

(1)求f(0)的值;

(2)當(dāng)f(x)+2<,x∈(0,)恒成立時,求a的取值范圍.

函數(shù)f(x)對一切實(shí)數(shù)x,y均有f(x+y)-f(y)=(x+2y+1)x成立,且f(1)=0.

(1)求f(0);

(2)求f(x);

(3)不等式f(x)＞ax-5當(dāng)0＜x＜2時恒成立,求a的取值范圍.

函數(shù)f(x)對一切實(shí)數(shù)x,y均有f(x+y)-f(y)=(x+2y+1)x成立,且f(1)=0.

(1)求f(0);

(2)求f(x);

(3)不等式f(x)＞ax-5當(dāng)0＜x＜2時恒成立,求a的取值范圍.